This document provides a sample configuration for tunneling an IPv6 Routing Information Protocol (RIP), and an IPv6 Border Gateway Protocol (BGP) network and traffic through a pre-existing IPv4 network. This technique allows you to connect IPv6 sites over the IPv4 backbone that exists.
A correlation by itself is often not very informative. A large correlation does not necessarily indicate causality. If one or both of the variables involved in the correlation are related to some third variable, the correlation may change substantially when controlling for that third variable. In this case, the SAT I (aptitude) score is highly correlated with high school GPA and with subject achievement test scores on the SAT II.
A correlation coefficient is a statistical measure of the degree to which changes to the value of one variable predict change to the value of another. When the fluctuation of one variable reliably predicts a similar fluctuation in another variable, thereâs often a tendency to think that means that the change in one causes the change in the other.